Basic Report Design - Professional SQL Server 2005 Reporting Services - page 104

In addition to the standard, single-bar view, the stacked view provides a consolidated look at a series of
values by using fewer bars or columns. Each bar is like a mini-pie chart where each value in the bar's
range is in proportion to the others. Figure 4-44 shows a standard stacked column chart. A series of
related values is stacked in the column to show the aggregate sum of values and their proportional val-
ues. A variation, the 100% stacked bar or chart, displays each bar with the same height or length as oth-
ers, regardless of the total values. This type of chart is useful for comparing values within the bars' range
but not for comparing the aggregates represented by each bar.
Figure 4-44
One of the most powerful features of the chart item is the ability to group data within each axis. Figure
4-45 shows a simple column chart with two field groups defined on the X-axis, representing related cate-
gories. Columns are grouped by quarter and then by the sales territory country.
Figure 4-45